51878620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{19801}}^1$

素因数の和:19941

約数の個数: 24

約数和(自身を含む): 109782288

約数和(自身を除く): 57903668

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 19801, 39602, 79204, 99005, 198010, 396020, 2593931, 5187862, 10375724, 12969655, 25939310, 51878620]

約数ペア:

[(1, 51878620), (2, 25939310), (4, 12969655), (5, 10375724), (10, 5187862), (20, 2593931), (131, 396020), (262, 198010), (524, 99005), (655, 79204), (1310, 39602), (2620, 19801)]